Fluid fuel burner



1934- o. E. B. SUNDBLAD ET AL v v 1,930,449

FLUID FUEL BURNER Filed June 15, 1933 (0 j INVEEEEERLS.

% ATTORNEY.

Patented Nov. 13, 1934 FLUID FUEL BURNER Oskar Erik Bii'ger Sundblad andBengt Axelsson Grahn, Stockholm, Sweden,

assignors, by

mesne assignments, to Electrolux Serve! Cob poration, New York, N. Y., acorporation at Delaware Application June 15, 1933, Serial No. 675,878 InGermany June 21, 1932 1 Claim.

' This invention relates to heating apparatus and more particularly to aliquid fuel burner of the wick type.

In accordance with this invention there is provided a wick type liquidfuel burner provided with an individual liquid fuel reservoir, the bumerbeing resiliently mounted on said reservoir and thus displaceable withrespect thereto, at fording ready removability with respect to anelement to be heated.

Other objects and advantages will be apparent from the followingdescription taken in connection with the accompanying drawing, in which,

-The figure shows schematically a burner arll rangement contemplated bythis invention.

Referring to the drawing, there is indicated as the element to beheated, a generator 10 for absorption type refrigeration apparatus sowell known as to here require no further illustra- 10 tion ordescription. There is shown only the lower end of the generator and thelower end of a heating flue 11 which extends vertically through thegenerator 10 for heating absorption solution contained in the latter.For reduction of heat loss by radiation, the generator is enclosed bythermal insulation material 12. Below the lower end of the heating flue11 there is mounted a suitable support such as the bracket shelf 13 onwhich rests a reservoir 14 for liquid fuel, which latter may beconveniently constructed of glass as well known in the art. In the topof the reservoir 14 is a circular opening in which there is fixed acylindrical sleeve 15 provided with an outward flange 16 at its upperend. A burner 17 is of a type well known in the art provided with aguide,

not shown, Ior the wick l8 and a wick screw 19- for adjusting the sizeof the flame at the upper end 20 of the wick. Around the upper end of 0the wick, the burner 1'1 is provided with a short chimney 21, the upperend 22 of which is adapt- -ed to receive the lower end of the heatingflue 11 when the chimney and flue are brought into coextensive relationas shown.

There depends from the burner 17 a tubular portion 23, affordingcommunication with the reservoir 14, and the wick 18, carried by theburner, extends downwardly through the tubular portion 23 into thereservoir 14. The tubular portion 23 of the burner is verticallyreciprocable in the fixed guide sleeve 15 so that the burner 17 andreservoir 14 are relatively displacrable. A spring 24 coiled about thetubular portion 23 of the burner between a shoulder 5 25 on the burnerand the flange 16 of the sleeve 15 maintains an upward tension betweenthe burner and reservoir.

The heating element is placed in position by moving the burner 17downwardly toward the reservoir 14 against the resiliency of spring 24 wand resting the reservoir 14 on the bracket support 13 under the lowerend of the heating flue 11. When downward pressure on the burner 17 isreleased, the spring 24 raises the burner 1'7 upwardly until the upperend 22 of the stub chimney 21 engages the lower end of flue 11 incoextensive relation therewith. To 1311 the reservoir, trim the wick, orotherwise service the heating element, the burner 1'1 may be presseddownwardly against the resilient action of the 7 spring 24, thusdisengaging the \upper end of the chimney and lower end of the flue,whereupon the element may be removed from its support.

It will be obvious to those skilled in the art' that various changes maybe made in the construction and arrangement without departing from thespirit of the invention and therefore the invention is not limited towhat is shown in the drawing and described in the speciflcation but onlyas indicated in the following claim.

- We claim:

In combination with an element to be heated provided with a verticalheating flue, a reservoir for liquid fuel having a circular opening inthe top thereof, a cylindrical sleeve fixed in said opening, a supportfor said reservoir below the lower end of said flue, a wick type fuelburner having an upwardly extending chimney and a depending tubularportion affording communication with said reservoir and reciprocable insaid sleeve, and a coil time 1111118 around said tubular portion betweensaid burner and a flange on the upper end of said sleeve to urge saidburner upwardly with respect to said reservoir to normally maintain theupper end of said chimney in coextensive relation with the lower end ofsaid flue.

OSKAR ERIK BIRGER- SUNDBLAD. BENGT AXELSSON GRQHN,

